Pith Number

pith:7SXR55FE

pith:2021:7SXR55FE7EI4SLFWONFUYEBQCW

not attested not anchored not stored refs pending

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Bei Chen, David Wood, Dhaval Patel, Giridhar Ganapavarapu, Gregory Bramble, Horst Samulowitz, Long Vu, Peter Kirchner, Petros Zerfos, Roman Vaculin, Syed Yousaf Shah, Wesley M. Gifford, Xuan-Hong Dang

arxiv:2102.12347 v2 · 2021-02-24 · cs.LG · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7SXR55FE7EI4SLFWONFUYEBQCW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T02:21:01.423739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcaf1ef4a4f911c92cb6734b4c103015a350ace961df84a2ba465c5e00c29abe

Aliases

arxiv: 2102.12347 · arxiv_version: 2102.12347v2 · doi: 10.48550/arxiv.2102.12347 · pith_short_12: 7SXR55FE7EI4 · pith_short_16: 7SXR55FE7EI4SLFW · pith_short_8: 7SXR55FE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7SXR55FE7EI4SLFWONFUYEBQCW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: fcaf1ef4a4f911c92cb6734b4c103015a350ace961df84a2ba465c5e00c29abe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6a669262538c7de930e224956fd7a205964e244c67ab8016d74da1b16e23c2b",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-24T15:30:54Z",
    "title_canon_sha256": "a4d71469e525421887ee96aaa6a3da669427063b1b02099a932720f4f6849da9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.12347",
    "kind": "arxiv",
    "version": 2
  }
}